JPH0924095A - Injector for endoscope - Google Patents
Injector for endoscopeInfo
- Publication number
- JPH0924095A JPH0924095A JP7174582A JP17458295A JPH0924095A JP H0924095 A JPH0924095 A JP H0924095A JP 7174582 A JP7174582 A JP 7174582A JP 17458295 A JP17458295 A JP 17458295A JP H0924095 A JPH0924095 A JP H0924095A
- Authority
- JP
- Japan
- Prior art keywords
- endoscope
- tube
- liquid passage
- outer tube
- injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Endoscopes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、内視鏡の処置具
挿通チャンネル内に挿通されて患者の体腔内に注射をす
るための内視鏡用注射具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope injection instrument for inserting an endoscope into a treatment instrument insertion channel to inject into a body cavity of a patient.
【０００２】[0002]
【従来の技術】内視鏡用注射具は一般に、先端側に注射
針を有して基端側に薬液注入口を有する一本の通液管を
外套管内に進退自在に挿通配置して、薬液注入口は外套
管の基端から引き出し、注射針は外套管の先端から突没
させることができるように構成されている。2. Description of the Related Art In general, a syringe for an endoscope has a single liquid passage tube having an injection needle on the distal end side and a drug solution injection port on the proximal end side, which is insertably and retractably inserted into an outer sheath tube. The drug solution inlet is drawn out from the proximal end of the outer tube, and the injection needle is configured to be retractable from the distal end of the outer tube.
【０００３】[0003]
【発明が解決しようとする課題】内視鏡用注射具は、食
道その他の消化管内の止血治療を行うために用いられる
ことがあるが、止血処置を行うためには、隣接する複数
箇所に止血剤を注射する必要のあることが少なくない。
また、穿刺箇所が不適切なために、近くの別の位置に穿
刺をし直すケースも少なくない。そのような場合、上述
のような従来の内視鏡用注射具では、一度穿刺した注射
針を抜いて穿刺をやり直す必要がある。The injection device for an endoscope is sometimes used for the treatment of hemostasis in the esophagus and other digestive tracts. However, in order to perform hemostasis, hemostasis at a plurality of adjacent locations is required. It is often necessary to inject drugs.
In addition, there are many cases in which the puncture location is inappropriate and the puncture is performed again at another nearby position. In such a case, in the conventional endoscope injection device as described above, it is necessary to remove the once punctured injection needle and perform puncturing again.
【０００４】しかし、一度穿刺した注射針を抜くと、針
で穿けられた孔からの出血により周囲が真っ赤になっ
て、内視鏡による患部周辺の観察が不可能になってしま
うので、血液を洗浄水等で洗い流してからやり直しをす
る等、余分な処置に長時間を要する場合が少なくない。[0004] However, once the punctured injection needle is pulled out, bleeding from the hole pierced by the needle makes the surroundings bright red, making it impossible to observe the area around the affected area with an endoscope. It often happens that extra treatment takes a long time, such as rinsing with washing water and then starting over.
【０００５】そこで本発明は、すでに穿刺した注射針を
抜くことなく、その近くの位置に改めて注射をすること
ができる内視鏡用注射具を提供することを目的とする。[0005] Therefore, an object of the present invention is to provide an endoscope injection tool capable of reinjecting into a position in the vicinity thereof without removing an already punctured injection needle.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の内視鏡用注射具は、内視鏡の処置具挿通チ
ャンネル内に挿通される外套管と、上記外套管内に進退
自在に全長にわたって挿通されて、先端側には上記外套
管の先端から突没される注射針を有し、基端側には上記
外套管の基端から引き出された薬液注入口を有する複数
の通液管とを設けたことを特徴とする。In order to achieve the above object, an endoscope injection tool of the present invention has an outer tube inserted into a treatment instrument insertion channel of an endoscope, and an advance / retreat into the outer tube. A plurality of injection needles that are freely inserted through the entire length, have a distal end with an injection needle projecting and retracting from the distal end of the outer tube, and have a proximal end with a drug solution inlet drawn from the proximal end of the outer tube. A liquid passage tube is provided.
【０００７】[0007]
【発明の実施の形態】図面を参照して実施の形態を説明
する。図１は内視鏡用注射具を示しており、１は、内視
鏡の処置具挿通チャンネルに挿通自在な外套管であっ
て、例えばポリテトラフルオロエチレン（ＰＴＦＥ）な
どのフッ素樹脂チューブのような可撓性のあるチューブ
によって形成されている。Embodiments will be described with reference to the drawings. FIG. 1 shows an injection tool for an endoscope. Reference numeral 1 denotes an outer tube that can be inserted into a treatment tool insertion channel of an endoscope, such as a fluororesin tube such as polytetrafluoroethylene (PTFE). It is formed by a flexible tube.
【０００８】外套管１内には、２本の通液管２（２ａ，
２ｂ）が軸線方向に進退自在に全長にわたって挿通配置
されている。各通液管２は、例えばポリイミド樹脂チュ
ーブ、ポリウレタン樹脂チューブ又はＰＴＦＥチューブ
のような少々硬めの可撓性のあるチューブによって形成
されている。In the outer tube 1, two liquid passage tubes 2 (2a, 2a,
2b) is inserted and arranged over the entire length so as to be movable back and forth in the axial direction. Each liquid passage tube 2 is formed of a slightly hard and flexible tube such as a polyimide resin tube, a polyurethane resin tube, or a PTFE tube.
【０００９】各通液管２の先端には、外套管１の先端近
傍において、注射針３が接続固定されている。注射針３
は金属製でもよいし、合成樹脂で通液管２と一体に形成
してもよい。また、注射針３の長さや太さは、使用目的
に応じて選択すればよい。An injection needle 3 is connected and fixed to the tip of each liquid passage tube 2 in the vicinity of the tip of the outer tube 1. Injection needle 3
May be made of metal or may be made of synthetic resin integrally with the liquid passage tube 2. The length and thickness of the injection needle 3 may be selected according to the purpose of use.
【００１０】各通液管２の基端側は、外套管１の基端か
ら例えば３０〜５０ｃｍ程度外方に引き出されていて、
その端部には、図示されていない注射器を接続可能な注
射器受け口金４が接続されている。The proximal end side of each liquid passage tube 2 is drawn outward from the proximal end of the outer tube 1 by about 30 to 50 cm,
A syringe socket base 4 to which a syringe (not shown) can be connected is connected to the end thereof.
【００１１】また、外套管１の基端側口元に固着された
口元口金５には、２本の通液管２を、少し間隔をあけて
並べた状態で各々軽く締めつけるように、例えば独立発
泡のスポンジ等からなるパッキング６が取りつけられて
いる。このパッキング６によって、外套管１内を逆流し
てくる汚物等の噴出が阻止される。Further, the mouthpiece 5 fixed to the mouth of the outer tube 1 at the base end side is provided with, for example, independent foaming so that two liquid passage tubes 2 are lightly tightened in a state in which they are arranged with a little space therebetween. A packing 6 made of sponge or the like is attached. The packing 6 prevents ejection of dirt and the like flowing back in the outer tube 1.
【００１２】通液管２は、各々パッキング６によって軽
く締めつけられているので、外部に露出する基端側の部
分を手で摘んで押し引きすれば、外套管１内で進退し
て、先端の注射針３が外套管１の先端から突没する。そ
して、通液管２から手を離せば、パッキング６の締めつ
け力によって、通液管２が自由に動かない程度に軽く保
持される。Since the liquid passage pipes 2 are lightly tightened by the packing 6, if the portion of the base end side exposed to the outside is grasped and pushed by hand, the liquid passage pipes 2 move forward and backward in the outer sheath pipe 1 and are The injection needle 3 projects from the tip of the outer tube 1. Then, when the hand is removed from the liquid passage pipe 2, the liquid passage pipe 2 is held lightly by the tightening force of the packing 6 to the extent that the liquid passage pipe 2 does not move freely.
【００１３】図２は、上述の内視鏡用注射具が内視鏡１
０の処置具挿通チャンネル１１内に挿通された使用状態
を示しており、外套管１の先端が内視鏡の挿入部１２の
先端から突出され、外套管１の基端側は、処置具挿通チ
ャンネル１１の入口部分から手元側に突出している。１
３は、処置具挿通チャンネル１１の入口口元に取りつけ
られた鉗子栓である。FIG. 2 shows that the above-mentioned endoscope injection tool is an endoscope 1.
0 shows a use state inserted into the treatment instrument insertion channel 11 of 0, the distal end of the outer sheath tube 1 is projected from the distal end of the insertion portion 12 of the endoscope, and the proximal end side of the outer sheath tube 1 is inserted into the treatment instrument insertion channel. It projects from the entrance of the channel 11 toward the hand side. 1
A forceps plug 3 is attached to the entrance opening of the treatment instrument insertion channel 11.
【００１４】このような内視鏡用注射具を用いて、図３
に示されるように、第１の通液管２ａを外套管１から押
し出して、その先端の注射針３を体腔内壁に穿刺したと
き、その穿刺位置が患部１００からずれてしまったら、
患部１００に対して正しく穿刺をし直す必要がある。Using such an endoscope injection tool, as shown in FIG.
As shown in, when the first liquid passage tube 2a is pushed out from the mantle tube 1 and the injection needle 3 at its tip is punctured into the inner wall of the body cavity, if the puncture position is displaced from the affected area 100,
It is necessary to puncture the affected area 100 correctly.
【００１５】その場合には、図４に示されるように、体
腔内壁に穿刺した注射針３を抜くことなく、第２の通液
管２ｂを外套管１から押し出して、その先端の注射針３
を患部１００に穿刺すればよい。In this case, as shown in FIG. 4, the second liquid passage tube 2b is pushed out of the outer tube 1 without removing the injection needle 3 punctured in the inner wall of the body cavity, and the injection needle 3 at the tip thereof is pushed out.
It suffices to puncture the affected area 100.
【００１６】その際に、内視鏡１０の挿入部１２の先端
の向きを少し変化させる必要があるが、第１の通液管２
ａがたわむので、何ら問題なく挿入部１２の向きを変え
ることができる。At this time, it is necessary to slightly change the direction of the tip of the insertion portion 12 of the endoscope 10, but the first liquid passage tube 2
Since a is bent, the orientation of the insertion portion 12 can be changed without any problem.
【００１７】図５は、本発明の第２の実施の形態を示し
ており、内視鏡用注射具の口元口金５を、内視鏡１０の
処置具挿通チャンネル１１の入口口元部分に固定できる
ようにしたものである。このようにすることによって、
内視鏡１０を操作する術者自身が内視鏡用注射具の操作
も行うことができる。FIG. 5 shows a second embodiment of the present invention, in which the mouthpiece 5 of the endoscope injection tool can be fixed to the entrance mouth portion of the treatment instrument insertion channel 11 of the endoscope 10. It was done like this. By doing this,
The operator himself who operates the endoscope 10 can also operate the endoscope injection tool.
【００１８】この場合には、内視鏡１０の挿入部１２の
先端からの外套管１の突出長さＬは、使用目的に応じて
設定すればよい。また、外套管１に対する口元口金５の
固定位置を調整可能にしてもよい。In this case, the protruding length L of the outer tube 1 from the tip of the insertion portion 12 of the endoscope 10 may be set according to the purpose of use. Further, the fixing position of the mouthpiece 5 with respect to the outer tube 1 may be adjustable.
【００１９】図６は、本発明の第３の実施の形態を示し
ており、外套管１として、２本の通液管２を互いに独立
して挿通するための２つの孔１ａ，１ｂが軸線方向に全
長にわたって形成されたいわゆるマルチルーメンチュー
ブを用いたものである。このようにすると２本の通液管
２の途中交差等が防止されて、各注射針３を目的部位に
正確に穿刺することができる。FIG. 6 shows a third embodiment of the present invention. As the outer tube 1, two holes 1a and 1b for inserting two liquid passage tubes 2 independently from each other are provided as an axis line. A so-called multi-lumen tube formed over the entire length in the direction is used. In this way, it is possible to prevent the two liquid passage tubes 2 from intersecting in the middle, and the respective injection needles 3 can be accurately punctured at the target site.
【００２０】また、第２の通液管２の先端の注射針３で
穿刺する際に、外套管１を口元口金５側において軸回り
に回動させることにより、２番目に穿刺する注射針３を
目的部位に正確に穿刺することができる。When puncturing with the injection needle 3 at the tip of the second liquid passage tube 2, the mantle tube 1 is rotated around the axis on the mouthpiece 5 side to make the second injection needle 3. It is possible to accurately puncture the target site.
【００２１】この実施の形態では２本の通液管２が外套
管１内を全長にわたって独立して挿通されるように孔１
ａ，１ｂが形成されているが、外套管１の断面内での各
通液管２の位置関係を保持できる構造であれば、通液管
２を保持しない部分が部分的にあってもよい。In this embodiment, the two liquid passage pipes 2 are independently inserted through the outer pipe 1 over the entire length thereof.
Although a and 1b are formed, if the structure is such that the positional relationship of each liquid passage pipe 2 in the cross section of the outer tube 1 can be maintained, there may be a part where the liquid passage pipe 2 is not held. .
【００２２】なお、本発明は上記各実施の形態に限定さ
れるものではなく、例えば外套管１内に挿通する通液管
２の数は３本以上であってもよい。この場合、図６に示
したような、外套管１の断面内での位置関係を保持させ
るための孔１ａ，１ｂは、必ずしも全部のチューブに対
して独立して形成しなくてもよい。The present invention is not limited to the above-described embodiments, and the number of liquid passage tubes 2 inserted into the outer tube 1 may be three or more, for example. In this case, the holes 1a and 1b for holding the positional relationship in the cross section of the outer tube 1 as shown in FIG. 6 do not necessarily have to be formed independently for all the tubes.
【００２３】[0023]
【発明の効果】本発明によれば、先端側に注射針を有し
て基端側に薬液注入口を有する複数の通液管を外套管内
に進退自在に挿通配置して、薬液注入口は外套管の基端
から引き出し、注射針は外套管の先端から突没させるこ
とができるようにしたことにより、すでに穿刺した注射
針を抜くことなく、その近くの位置に改めて別の注射を
することができるので、注射針を抜いた孔からの出血等
がない状態で、安全且つ確実に目的部位に対する経内視
鏡的注射を行うことができる。According to the present invention, a plurality of liquid passage tubes having an injection needle on the distal end side and a chemical liquid injection port on the proximal end side are arranged so as to be capable of advancing and retracting in the mantle tube, and the chemical liquid injection port is By pulling out from the proximal end of the mantle tube and allowing the injection needle to project and retract from the tip of the mantle tube, it is possible to make another injection again at a position near it without removing the already punctured injection needle. Therefore, it is possible to safely and surely perform the endoscopic injection to the target site without bleeding or the like from the hole in which the injection needle is pulled out.
【図１】本発明の第１の実施の形態の内視鏡用注射具の
側面断面図である。FIG. 1 is a side cross-sectional view of an endoscope injection device according to a first embodiment of the present invention.
【図２】本発明の第１の実施の形態の注射具が内視鏡に
通された状態の略示図である。FIG. 2 is a schematic view of a state where the injection device according to the first embodiment of the present invention is passed through an endoscope.
【図３】本発明の第１の実施の形態の使用状態の穿刺部
分の断面図である。FIG. 3 is a cross-sectional view of a punctured portion in a used state according to the first embodiment of the present invention.
【図４】本発明の第１の実施の形態の使用状態の穿刺部
分の断面図である。FIG. 4 is a cross-sectional view of a punctured portion in a used state according to the first embodiment of the present invention.
【図５】本発明の第２の実施の形態の注射具が内視鏡に
通された状態の略示図である。FIG. 5 is a schematic view showing a state where the injection device according to the second embodiment of the present invention is passed through an endoscope.
【図６】本発明の第３の実施の形態の内視鏡用注射具の
先端部分の斜視図である。FIG. 6 is a perspective view of a distal end portion of an endoscope injection device according to a third embodiment of the present invention.
１ 外套管 ２ 通液管 ３ 注射針 ４ 注射器受け口金 1 Overcoat tube 2 Liquid passage tube 3 Injection needle 4 Syringe socket
Claims (1)
れる外套管と、 上記外套管内に進退自在に全長にわたって挿通されて、
先端側には上記外套管の先端から突没される注射針を有
し、基端側には上記外套管の基端から引き出された薬液
注入口を有する複数の通液管とを設けたことを特徴とす
る内視鏡用注射具。1. An outer tube inserted into a treatment instrument insertion channel of an endoscope, and an outer tube inserted into the outer tube so as to be movable back and forth over its entire length.
An injection needle projecting and retracting from the distal end of the mantle tube is provided on the distal end side, and a plurality of liquid passage tubes having a drug solution inlet drawn from the proximal end of the mantle tube are provided on the proximal end side. An endoscope injection tool characterized by:
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17458295A JP3923550B2 (en) | 1995-07-11 | 1995-07-11 | Endoscopic syringe |
| US09/369,346 US6203533B1 (en) | 1995-06-07 | 1999-08-06 | Treatment accessory for an endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17458295A JP3923550B2 (en) | 1995-07-11 | 1995-07-11 | Endoscopic syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0924095A true JPH0924095A (en) | 1997-01-28 |
| JP3923550B2 JP3923550B2 (en) | 2007-06-06 |
Family
ID=15981083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17458295A Expired - Lifetime JP3923550B2 (en) | 1995-06-07 | 1995-07-11 | Endoscopic syringe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3923550B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7704203B2 (en) | 1998-12-11 | 2010-04-27 | Boston Scientific Scimed, Inc. | Kit for treating gastrointestinal tract |
| US7771347B2 (en) | 1998-12-11 | 2010-08-10 | Boston Scientific Scimed, Inc. | Method for treating tissue with an implant |
| US8177707B2 (en) | 1998-12-11 | 2012-05-15 | Boston Scientific Scimed, Inc. | Method for treating tissue with an implant |
| CN107485778A (en) * | 2017-08-07 | 2017-12-19 | 梁靖华 | A kind of anal intestine analgesia apparatus and indwelling equipment |
| CN111529196A (en) * | 2020-06-22 | 2020-08-14 | 四川大学华西医院 | Injection flow adjustable double-chamber injector for eye |
-
1995
- 1995-07-11 JP JP17458295A patent/JP3923550B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7704203B2 (en) | 1998-12-11 | 2010-04-27 | Boston Scientific Scimed, Inc. | Kit for treating gastrointestinal tract |
| US7771347B2 (en) | 1998-12-11 | 2010-08-10 | Boston Scientific Scimed, Inc. | Method for treating tissue with an implant |
| US8177707B2 (en) | 1998-12-11 | 2012-05-15 | Boston Scientific Scimed, Inc. | Method for treating tissue with an implant |
| CN107485778A (en) * | 2017-08-07 | 2017-12-19 | 梁靖华 | A kind of anal intestine analgesia apparatus and indwelling equipment |
| CN111529196A (en) * | 2020-06-22 | 2020-08-14 | 四川大学华西医院 | Injection flow adjustable double-chamber injector for eye |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3923550B2 (en) | 2007-06-06 |
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